Assessment of the Commercial Botanical Insecticides Against the desert Locust, Schistocerca gregaria (FORSK.) (Orthoptera: Acrididae)
Al-Maroug, N., Nassar, M., Abdelatef, G., ELShazly, M., Abd ElFattah, E., Abd El-Monem, D. (2022). Assessment of the Commercial Botanical Insecticides Against the desert Locust, Schistocerca gregaria (FORSK.) (Orthoptera: Acrididae). EKB Journal Management System, 14(2), 121-132. doi: 10.21608/eajbsf.2022.266750
Nagah Amar Al-Maroug; Mamdouh Ibrahim Nassar; Gamal Mohamed Abdelatef; Mohamed Mohamed, ELShazly; Eman Alaa Eldin Abd ElFattah; Dina H. Abd El-Monem. "Assessment of the Commercial Botanical Insecticides Against the desert Locust, Schistocerca gregaria (FORSK.) (Orthoptera: Acrididae)". EKB Journal Management System, 14, 2, 2022, 121-132. doi: 10.21608/eajbsf.2022.266750
Al-Maroug, N., Nassar, M., Abdelatef, G., ELShazly, M., Abd ElFattah, E., Abd El-Monem, D. (2022). 'Assessment of the Commercial Botanical Insecticides Against the desert Locust, Schistocerca gregaria (FORSK.) (Orthoptera: Acrididae)', EKB Journal Management System, 14(2), pp. 121-132. doi: 10.21608/eajbsf.2022.266750
Al-Maroug, N., Nassar, M., Abdelatef, G., ELShazly, M., Abd ElFattah, E., Abd El-Monem, D. Assessment of the Commercial Botanical Insecticides Against the desert Locust, Schistocerca gregaria (FORSK.) (Orthoptera: Acrididae). EKB Journal Management System, 2022; 14(2): 121-132. doi: 10.21608/eajbsf.2022.266750

Assessment of the Commercial Botanical Insecticides Against the desert Locust, Schistocerca gregaria (FORSK.) (Orthoptera: Acrididae)

Egyptian Academic Journal of Biological Sciences, F. Toxicology & Pest Control
Article 11, Volume 14, Issue 2, December 2022, Page 121-132  XML PDF (616.87 K)
Document Type: Original Article
DOI: 10.21608/eajbsf.2022.266750
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Authors
Nagah Amar Al-Maroug1; Mamdouh Ibrahim Nassar1; Gamal Mohamed Abdelatef2; Mohamed Mohamed, ELShazly1; Eman Alaa Eldin Abd ElFattah1; Dina H. Abd El-Monem1
1Entomology Department, Faculty of Science, Cairo University
2Plant Protection Research Institute, Agriculture ResearchCenter
Abstract
Desert locust, Schistocerca gregaria is a serious agricultural pest that causes considerable damage to food crops and pasture grasses. This study was carried out to evaluate the commercial botanical insecticides, Sabadilla, Limonene, Rotenone, and Azadirachtin on Sch. gregaria. Results indicated that the 4th nymphal instars were affected after feeding on clover leaves treated with the various concentrations of the tested compounds. Early 24hrs. moulted 4th nymphal instar was more sensitive to azadirachtin followed by rotenone, sabadill and finally limonene botanical. The recorded LC50 value was 3.4, 3.7, 3.9 and 4.2% by the effect of azadirachtin, rotenone, sabadilla and limonene respectively against 4th nymphal instars 72hrs. post-treatment. While LC90 was 15.2, 18.7, 26.3 and 28.1% in the same previous compound respectively. The higher prolongation of nymphal duration was 17.6 days with azadirachtin at a concentration of 15% and lower prolongation was 10.5 with limonene at a concentration of 5% compared to 10.2 days of control. Also, nymphs suffered from weight loss for all tested botanical insecticides particularly at higher concentrations then died. The morphogenetic effect was obtained at different concentrations of the tested botanical insecticides. Deformation was in the form of abnormal nymphs and nymphal-adult intermediate stages. 
Keywords
Commercial Botanical insecticides · biocontrol · Schistocerca gregaria; morphogenesis; toxicity
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